Practice Example 8.5: Four-line To Two-line Priority Encoder (8.2.2) - Multiplexers and Demultiplexers - Part B
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Example 8.5: Four-Line to Two-Line Priority Encoder

Practice - Example 8.5: Four-Line to Two-Line Priority Encoder

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an encoder?

💡 Hint: Think about how we simplify the input information.

Question 2 Easy

Define a truth table.

💡 Hint: Consider why we explore every possible case in a logic circuit.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a priority encoder do?

Outputs all high inputs
Outputs the highest priority active input
Ignores all active inputs

💡 Hint: Consider what happens when all inputs are activated.

Question 2

True or False: A priority encoder can output multiple active inputs.

True
False

💡 Hint: Think about how priority is assigned.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a circuit for a four-line to two-line priority encoder using logic gates. Include a truth table and derive its Boolean expressions.

💡 Hint: Refer back to our discussions about how inputs influence outputs and how those can be represented.

Challenge 2 Hard

In a scenario where D0 and D1 are both '1' and D3 is also '1', which output will the encoder prioritize and what will the output values be?

💡 Hint: Remember to check which D has the highest numerical priority.

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Reference links

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